1311915607 has 16 divisors (see below), whose sum is σ = 1387330560. Its totient is φ = 1238133600.

The previous prime is 1311915557. The next prime is 1311915611. The reversal of 1311915607 is 7065191131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311915607 is a prime.

It is a super-2 number, since 2×1311915607² = 3442245119780356898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311915617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678432 + ... + 680362.

It is an arithmetic number, because the mean of its divisors is an integer number (86708160).

Almost surely, 2^1311915607 is an apocalyptic number.

1311915607 is a deficient number, since it is larger than the sum of its proper divisors (75414953).

1311915607 is a wasteful number, since it uses less digits than its factorization.

1311915607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 1311915607 is about 36220.3755778429. The cubic root of 1311915607 is about 1094.7172617798.

The spelling of 1311915607 in words is "one billion, three hundred eleven million, nine hundred fifteen thousand, six hundred seven".